Optimized Design of Microgrid System for Pelagic Island Group Based on Island Interconnection
The pelagic island group differs from ordinary islands in that they are far away from the mainland,and the costs of being interconnected with the mainland to form the main network and distribution network are too high,resulting in relatively large losses.Considering the unique location of the pelagic island group,the distribution of loads and the status of renewable energy reserves within the island groups were studied,and the islands are divided into pelagic resource islands and pelagic load islands.On the premise of balancing economics and environmental protection,an optimization scheduling model based on island interconnection is established for the microgrid system of the pelagic island group,with the objective of minimizing the daily operating cost and maximizing the consumption of renewable energy.Battery charging and discharging power and diesel generator output power are used as optimization variables,and the improved particle swarm grey wolf hybrid algorithm(GWO_PSO) is adopted to solve the optimization scheduling model.The model is applied to practical examples,and the results show its feasibility and effectiveness.Furthermore,by comparing it with the traditional particle swarm optimization algorithm(PSO),the superiority of the improved particle swarm grey wolf hybrid algorithm is validated.Better convergence performance and significant advantages in increasing the proportion of renewable energy consumption and reducing system operating costs are offered by the algorithm.
Pelagic resource islandpelagic load islandmicrogridparticle swarmgray wolf